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198 CHAPTER 4

GetMetaRowsFound

Use this method to identify the total number of rows of metadata that

are returned when your search or lookup executes.

Syntax

PCDLookup.GetMetaRowsFound()

PCDRecentDoc.GetMetaRowsFound()

PCDSearch.GetMetaRowsFound()

Returns

Returns a long integer that contains the number of rows of metadata in

the result set that your search or lookup returned.

Usage

You can use the row count value that GetMetaRowsFound returns in a

“

For 1 to TotalRows” loop to iterate through the metadata result

set. While use of the number returned by GetMetaRowsFound is

sometimes appropriate, there are performance considerations. Calling

this method causes the server to wait until the search has completely

finished retrieving all data from the database. The server will not return

control to your application until all processing of the search or lookup

is complete.

Those performance considerations suggest that it may be preferable to

use an alternate method of iterating through the metadata result set.

For example, instead of a “

For” loop, you can use the SetRow method

to position the pointer to row zero, and then use a “

While

YourObj.

NextRow” loop to iterate through the metadata result set.

Using this procedure, the server retrieves large metadata result sets in

smaller “chunks” according to parameters set by the SetChunkFactor

method.

Example

The GetMetaRowsFound method is used in the Example in the

PCDLookup discussion in Chapter 3.

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